Seiko Cal. 3810 - 556

This Spring Drive model from 1972 features a 42mm PVD Black case. Powered by the 3810 caliber with 24j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-188853c8c9cb]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1972

Related Models

• Seiko 7197-946
• Seiko 5668-735
• Seiko 7049-439
• Seiko 0768-473
• Seiko 4447-129
• Seiko 5658-797
• Seiko 6618-802
• Seiko 3879-979
• Seiko 4535-129
• Seiko 6311-900
• Seiko 6229-598
• Seiko 5683-647